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Or have professional battery machines not been around long enough to tell?
the first Stihl AP packs are from around 2009. They do not have a date printed on them unlike many li-ion packs from other brands. But using my ADG-1 diagnostic gadget you can read manufacturing month and year on the screen. Also percentage of remaining capacity. Mine only reads the older type of AP batteries, not the orange fronted ones. I don't know if I can get the machine updated. Got plenty AP packs from 2012 still 100%. Not tried it with my backpacks which are old but work fine. Obviously it depends how many charge cycles the battery has done, which is an unknown amount on mine
All my small batteries have never missed a beat so far and some of them must be 5 years old now. I have the AP3000 for 4 years and just before Christmas it has developed a fault, maybe that's it's life?
yes could just be one or 2 cells gone bad in the entire pack, they are not really repairable by the average person, I've opened up faulty li-ion packs out of curiosity but I know if I started the potentially dangerous process of breaking the cells out, they would never go back together! And the fault could lie with the battery management system anyhow. With most, but not all brands a lithium pack showing no lights anymore when the button is pressed, is game over. But worth putting on a charger to see if it accepts charge. There is a way of waking up dead packs by briefly connecting to a healthy pack of same voltage then putting it on the charger but i've never had luck with this method, they seem to perk up then die again. I had a couple of 36V bosch 6.0ah ones for the Rotak lawnmowers go bad, but some of the 4.0ah ones are 8 years old and have cut hundreds of lawns, paid £50 for each 4ah pack so been a good investment. The oldest ones are starting to fade gradually in run time but are still usable. Even with faulty batteries, punters will buy them if you put on Ebay (listed as for parts/not working obviously)
I use Ego Power gear. My oldest batteries are about 4 years old now and show no noticeable signs of aging, unlike their owner.
yes, I fear some of mine might "see me out" .... I have a few Ego ones, the 7.5Ah gets the most use, in my blower. Bought it second hand and it's been great. Have seen reports of some batteries stopping working but mostly from U.S. users where maybe the greater range of temperatures takes its toll. With any brand there will be a percentage of failures
I quite like the idea of an Ego Power mobility scooter...
I think it was in 2016 when we dipped our toes into the AP300 battery packs - they seem to be still going strong now....
Funnily enough ( although not to me!) A second hand ap80 I bought last year has popped the 4 red lights on just this morning. Don't think I'll be buying second hand again!
sad when that happens, an AP80 would be around a decade old (or more) now, and probably charged a thousand times so it's done good work (for previous owners unfortunately). Hopefully you didn't pay much for it. I had several AP80's and gradually changed over to AP100's of both the black fronted and orange fronted varieties (which have differing capacities) I also owned an AP115 for a while and there was an AP120 too, but never had one. I love second hand batteries myself
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